Fig. 10

Dashboard at peak throughput. Example of how the Monorail dashboard captured an instance of peak throughput when using 24 out of our maximum allocated 25 simultaneous Skylake nodes on the Stampede2 supercomputer at the Texas Advanced Computer Center. The red box indicates the hour when we achieved peak throughput of around 3.63 TB per hour. The red arrow points to the data point in the “In Throughput” dashboard element showing that measurement. The green box and arrow indicate that, throughout this time period, the fraction of the wall clock time spent on the download step of the workflow stayed steady at about 15–19%, indicating that downloading from the Sequence Read Archive was not a particular bottleneck during this approximately 12-h period. See also Monorail cost and throughput